The Breitling Bentley GMT B04 watch is part of the collection resulting from the partnership between Breitling and luxury car manufacturer Bentley, a partnership that began in 2003. At the heart of the Breitling Bentley GMT B04 is the Breitling Manufacture Caliber B04, an automatic chronograph movement certified as a chronometer by the COSC. The “S Carbon Body” version was presented at Baselworld in 2016. The bezel features knurling inspired by Bentley radiator grilles. The Bentley GMT B04 S Carbon Body edition is limited to 250 pieces, making it a rare and highly sought-after item among collectors.